Pier-protector



(No Model.)

A. MOORE.

PIER PROTECTOR.

Patented Peb. 1'7, 1891.

#0f uw By R,

Nrrnn rns AGNEVV MOORE, OF MISSOULA, MONTANA.

PIER-PROTECTOR.

SPECIFICATION forming part of Letters Patent No. 446,586, dated February 17, 1891.

Application filed May 16, 1890. Serial No. 352,061. (No model.)

To a/ZZ whom it may concern:

Be it known that I, AGNEW MOORE, of Missoula, in the county of Missoula and State of Montana, have invented a new and Improved Pier-Protector, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved bridge-pier protector which is simple and durable in construction, and especially designed to protect bridge-piers so as to prevent heavy articles-such as d riftwood, saw-logs, boats, due-drifting down the river from injuring the pier.

Theinvention consists of certain parts and details and combinations of the same, as will be described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters ot reference indicate corresponding parts in both the figures.

Figure l is a side elevation of the improvement as applied, and Fig. 2 is a plan view of the same.

The improved pier-protector is specially designed for use on wooden or stone piers such as are usually employed in rivers, streams, tbc., and ot the construction shown in Figs. l and 2. The pier A, built of beams with intervening spaces, is provided with the parallel sides B B,and the V-shaped ends C and C',

of Which the former extends up the stream and has its apex exposed to articles Heating down the river.

The sides B and B are connected with each other in the usual manner by cross-beams D, which, in connection with the end O, support two longitudinal beams E and E. In ord er to prevent injury to the apex of the end O, a roller F is provided, which is arranged vertically and secured on a shaft G, mounted to turn in suitable bearings formed in the longitudinally-extending beams E and E', built into the pier A, one above the other, in such a manner that the lower one E is asuitable distance below the water-level and the upper one a suitable distance above the water-level, so that the rollerF extendingbetween the two beams E and E protects the apex of t-he end rO, as any article floating against the roller turns the latter and the article is shifted to one side, so that the pier is not touched or injured.

Two of the beams of each side B and B are extended a short distance at their upper ends so as to form bearings for the vertically-arranged roller II, between which and the apex of the end C is placed a heavy plate I, the said roller and plate being about the same height as the front roller F. Now it will be seen that after an article has passed the roller F it may strike against the plate I, to pass over the roller Il, so that the article is guided awayfrom the pier and passes down the stream without further touchin g the latter. with tide-water arollerFis journaled at each end O and O, and plates I and rollers H are also placed on the lower end of the pier.

A hand-wheel J is placed on the upper end of shaft G, so as to turn the latter by hand in case the roller F is held tightbyiioating material.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is*n l. A pier-protector comprising a vertical roller journaled at the apex of the pier, and rollers journaled at the sides ot the pier, substantially as shown and described.

2. A pienprotector comprising a vertical roller journaled at the apex ot' the pier, side rollers journaled at the sides of the pier, and a plate arranged angularly between the front .and side rollers at each side of the pier, substantially as sliown and described.

A pierprotector comprising two longitudinal beams adapted to be secured in the pier and projecting beyond the apex of the latter, and a roller arranged vertically and journaled in projecting ends of the'said beams in front of the apex of the pier, substantially as shown and described.

AGNEV MOORE.

Witnesses:

FRANK THOMAS,

THOMAS MOORE.

In rivers 

